Home / 571,382.88-788,517.25-313,283.40

Finding the Fourth Proportional to 571,382.88, 788,517.25 and 313,283.40

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Solution

The fourth proportional to 571,382.88, 788,517.25 and 313,283.40 is: 432,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,382.88 : 788,517.25 = 313,283.40 : x
  2. Step 2: Convert to fraction form
    571,382.88/788,517.25 = 313,283.40/x
  3. Step 3: Cross multiply
    571,382.88x = 788,517.25 × 313,283.40
  4. Step 4: Simplify right side
    571,382.88x = 247,029,361,298.50
  5. Step 5: Solve for x
    x = 247,029,361,298.50/571,382.88
  6. Step 6: Final answer
    x = 432,335.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.